Slovakia Precipitation data

http://www.grassbook.org/data_menu2nd.php

Data set provided by:
 Helena Mitasova
 Jaro Hofierka
 2004

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Quick tour:
 The map 'dem500' is used for a DEM.
 There is a 3D file 'precip3d.500z50' that can be used
 for isosurfaces and cross-sections.

 nviz el=dem500

 Then load the volume (Panel -> Volume -> New).

 To see the isosurfaces use values between 600 and 1300
 (e.g. 700 and 1000 with transparency of approx. 100 and 
  a third isosurface 1300 with no transparency).

 Set the polygon resolution to 3 or less (note that for
 resolution 1 you may need to wait a little depending on your
 machine's speed) to render the volume.

You should get something like this:
 http://www4.ncsu.edu/~hmitaso//grasswork/slovakiavol.jpg
 http://www4.ncsu.edu/~hmitaso//grasswork/zrzky3dres1.jpg
 http://www4.ncsu.edu/~hmitaso//grasswork/zrazky3d.jpg